Hammerless small arm



l. DES`SARD. HAMMERLESS SMALL ARM. APPLlcAloN man nec. 14, 1920.

1,430,21 PatentedSept. 26, 1922.

Patented Sept. 26, 1922.

UNITED sTATEs JEAN DESSARD, OF HERSTAL-LEZ-LIEGE, BELGIUM.

`HALVHYIILRJ'JESS SMALL ARM.

A'btvlcation filed December 14 1920. Serial No. 430,756.

To all 'who/m, t may concern Be it known that I, JEAN DEssARD, a subjectot the King of the Belgians, residing at HerStaLleZ-Liege, Belgium, haveinvented Ycertain new and usefullmprovements inl Hammerless Small Arms,of which the fol' lowing is a specification.

This invention relates to hammerless smallar1ns and consists of a gun orriie having one or more dropdown barrels, in which the action comprisesa kneepiece act-` ing both as the ring bolt and the cooking device; thiscooking bolt slides in the knuckle and enters directly into engagementwith the corresponding sear ofthe action when discharge has taken placeand the 4breech is opened.

The accompanying drawing represents a hammerless gun of the above kind:

Figure 1 is an elevation in section on line A-A of Figure 2, showing thebolt in the cocked position.

Figure 2 is a view from below, showingone of the bolts cocked and theother fired.

Figure 3 is a section similar to that Vof Figure 1 through the lineB-B-A in the action body and through B-C in the front or fore-end. j

Figure 4 is a front view of the letter.

Figure 5 shows separately one of the breech bolts.

Figure 6 shows the corresponding sear.

The gun represented in the drawing comprises an action body 1, in whichthe barrels 2 are hooked and latched in any suitable manner. On eachside of this action body 1 there is milled or formed a longitudinalrecess 3 in which there can slide backwards and forwards the bolt 4which is shown detached in Figure 5. This bolt 4 consists of aknee-piece of which the upstandin leg forms the firing member proper,

serves to force back the bolt 4 and to bring it into the cockedposition.

The bolt 4 is maintained in the cocked position by a projection 11 onits inner side, this member entering into engagement with i the shoulderor notch 12 in the corresponding sear 13..' The latter consists of asmall lever pivoting around the axis 14 and acted upon by one of theleaves of a U-shaped plate spring 15, fixed upon the inner face ot the.action-body 1.. The other leaf `of this spring 15 acts upon the secondsear 13 (bclonging to the second barrel), placed beside the first uponthe p in or axis 14. Each of the triggers 16 has atits forward end abeak 17` ext-ending to above the end ofthe corresponding Sear, in such.a way that this end is lowered and the projection 11 of thc bolt 4 isreleased when the trigger 16 is pressed. The spring 18 then fires thecorresponding barrel.

The spring 15 which tends constantly to raise the rear end of the sears13 against the projection 11, serves also as a spring for the triggersin the guard.

The firing spring 18 is fitted in a longi tudinal groove or recess 19formed in the lower leg of the bolt 4 (Figures 1 and 5). It bears at oneend, when the bolt is mounted in the action-body, upon the front wall ofthe recess 19, and at the other end upon the Sear-pin 14, which passesthrough the action-body 1 and the slots 19 in the bolts 4. This spring18 is therefore compressed when the bolt 4 is forced back intoengagement with the scar 13.

Dismantling of the action is thus effected very simply by removing thepin 14, which frees the sears 13 and allows the withdrawal of the bolts4 with their springs 18, which can remain in the recesses 19.

Each bolt 4 has a perforation 30 drilled through the upright leg inaxial alignment with the slot 19. This is to allow a suitable instrumentto be inserted to compress the spring 18 and hold it in compressedposition and therefore facilitate the insertion and removal of the pin14 in assembling and dismantling action.

The breech mechanism described can be adapted to small-arms of differenttype from that represented by way of example.

Having fully described my invention, what I desire to claim and secureby Letters Patent is:

1. A tiring mechanism for guns comprising in combination, a frame, abolt reciprocable 'in the frame and provided with a longitudinal recess,a sear pivot pinixed in the frame and passing through the recess, and afiring spring disposed in the A pin'between the, bolts,vmeans on eachbolt4 adapted tov engage the Corresponding @ser anda U-shaped spring,each arm of which' 'cocked PQtiQlf l I y g, mechan1smfor guns` ml.combination, a pair of Vbolts reciprocable in.-

recess between the Sear pin and onev end of'` the recess.

2. In a ring mechanism for, gurlsinl combination a frame, a pairot1bolts reeiprocablein the frame, and disposedv side .by side, each bolthaving a loIigitndinaln recess therein, a pin fixed in thei'fr'ame' andpassing through the rem,esses ,..J sprmgin each recess confinedbetiveenthe piirand one end4 of the recess,a ,pain of sears' piv-`otallymounted onthe pinbetween the bolts, andnaIlS on each bolt adapted.to engage the corresponding sean to retain the bolt in 3. In v"irithe-:trame 'and disposed side by side, eachv bolt having a longitudinalslot tl'lerethrohgh.,

a pin fixed in, ,the frame and passing;

throngh A'the slots, a springin each slot conf, fined between one endthereof and. saidpin,v

a kpairfof sears pivotally mounted on the ment therewith Y engages asear and tends to hold it in boltfIn a :firing 'mechanism for guns alframe, a bolt reoproeable inthe frame Vand having a longitudinal slottherein, a pin ixedfjin theffraine and passing through the f slotNaspringV in? the slot connedi between one end thereof-and said pin, thebolt havlngjza perforation'v inA axial ralignment with vthe slot adaptedto receive a'tool for compressing the spring to assist in removing andfreplacing-the pin.

111, testimony whereof I aiIix vmy. signa' ture. v n

Y L JEAN DnssARn; itnesses z

